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dermatology
dr bs canine feline
| Question | Answer |
|---|---|
| Apocrine | Sweat glands, anal sacs, sympathetic NS |
| Sebaceous | Hair follicles, secrete sebum(oily), large glands |
| 3 layers of skin | Epidermis, dermis, hypodermis |
| Dermatology | Study of diseases of the skin |
| Alopecia | Hairloss |
| Seborrhea | Excessive secretion of sebum |
| Erythema | Increased redness |
| Collarette | Circular arrangement of scale with central area of hyperpigmentation |
| Crust | Accumulation of dead cells and exudate on skin surface. |
| Ectoparasites | External parasites |
| Dermatophyte | Fungi that grow on skin |
| Dermatophytosis | (Ring worm) skin infection with keratinophilic fungi |
| Pyoderma | Bacterial infection of skin, (superficial or deep) |
| Impetigo | "Puppy Pyoderma" superficial bacterial skin infection seen in young dogs |
| Lesion | Area of altered skin |
| Rash | Wide spread eruption of lesions |
| Hyperpigmentation | Increased pigmentation of skin |
| Lichenification | Thickening and hardening of skin characterized by exaggerated superficial skin markings |
| Cyst | Fluctuant nodule; walled off, fluid filled nodule |
| Papule | Small, circumscribed solid elevated lesion of the skin. ~1cm |
| pustule | Small, elevated, circumscribed, pus-containing lesion of the akin within the epidermis |
| Abscess | Localized collection of pus, larger than a pustule |
| Cellulitis | Swollen, tender area of skin with bacterial infection; can develop into an abscess |
| Granulation tissue | New tissue in a healing wound; consists of connective tissue and capillaries |
| Erosion | Loss of skin surface; shallow, moist, crusted does not penetrate basement membrane |
| Ulcer | Los of the epidermis resulting in exposure of dermis |
| Comedone | Dilated hair follicle blocked with sebum and other cellular debris |
| Seborrhea sicca | Dry, only scaliness |
| Seborrhea oleosa | Oily and scales |
| Keratolytics | Group of antiseborrheics |
| Seborrheic fungal dermatitis | Malassezia species |
| Cause of Pyoderma | Canine-staph intermedius Feline- pasteurella multocida |
| Deep pyoderma | Staph intermedius, proteus, pseudomonas, e coli |
| Superficial pyoderma | Acute moist dermatitis("hot spots"), impetigo(superficial pustular dermatitis), skin fold Pyoderma(intertrigo), acne |
| Ear mites | Otodectes cynotis. Live on skin surface in external ears |
| Flea | Ctenocephalides (felis) |
| Brown dog tick | Rhipicephalus sanguineus RMSF/Ehrlichia |
| Deer tick | Ixodes spp. Luke disease |
| American dog tick | Dermacentor veriabilis. RMSF |
| Mites life cycle | Egg, larva(6 legs), nymph, adult (8 legs) |
| Burrowing mites | Family sarcoptidae and family demodicidae |
| Family sarcoptidae | Sarcoptes, notoedres, knemidocoptes, trixacarus |
| Family demodicidae | Demodex |
| Nonburrowing mites | Cheyletiellosis(walking dandruff) |
| Warbles | Cuterebra |
| Myiasis | Fly maggots |
| Bot fly | Diptera |
| Dog lice | Linognathus setosus |
| Dermatophytes | Microsporum canis Microsporum gypseum |
| Dermatophytosis | Ringworm |
| Atopy | Atopic dermatitis |
| Otitis externa | Acute or chronic inflammatory disease of the external ear canal |
| Malassezzia Otitis | (Otitis externa) footprint, bowling pins, or snowman shaped |
| Bacterial Otitis | (Otitis externa) rod shaped And a skin cell |
| Anal sac disease | Sebaceous glands that produce a foul smelling oily, brown fluid. Naturally expressed during defication but can overfill. |
| Benign tumors of the skin | Histiocytoma, lipoma, papillomas, sebacceous gland cysts |
| Malignant skin tumor | Vaccine associated sarcomas, mast cell tumors, melanoma |
| Blistering disease | Pemphigus foliaceus |
| Immune mediated condition | Pemphigus |
| How Malignant tumors are expressed | FNA fine needle aspirate |
| Mast cells contain | Histamine and heparin |
| Dermatophytosis examples | Microsporum canis, microsporum gypseum, trichophyton mentagrophyte |
| 2nd most popular demodex on cat | Demodex gati |
| Flea allergy dermatitis in cats | Miliary dermatitis |